6.66×10−12 N6.66 \times 10^{-12} \mathrm{~N}6.66×10−12 N
6.56×10−11 N6.56 \times 10^{-11} \mathrm{~N}6.56×10−11 N
6.66×10−10 N6.66 \times 10^{-10} \mathrm{~N}6.66×10−10 N
6.67×10−11 N6.67 \times 10^{-11} \mathrm{~N}6.67×10−11 N